Centre for Environmental Modelling and Chemistry

Software Description

This model is useful for estimating rates of chemical loss from treatment lagoons, ponds, and lakes, for estimating deposition rates of atmospheric contaminants, and for interpreting observed air and water concentrations to establish the direction and rate of transfer. The results of changes in chemical and environmental properties may be explored by modifying the input data. Incremental changes in input properties can be used to obtain a sensitivity analysis.

Features of the AirWater Model:
Provides a database of chemicals and chemical properties.
Permits temporary additions/changes of chemicals and their properties to a simulation.
Permits permanent additions, changes and deletions of chemicals and their properties to the database.
Provides a database of environments and environmental properties.
Permits temporary additions/changes of environments and their properties to a simulation.
Permits permanent additions, changes and deletions of environments and their properties to the database.
Provides context-sensitive Help.
Displays and prints the AirWater model calculations, as performed by the program.
Allows the printing of simulation tables and the summary diagram.
Allows the program results to be saved as text file viewable by standard spreadsheet software.

This program was based on the following publications:

Mackay, D., Paterson, S., Schroeder, W.H. 1986. Model Describing the Rates of Transfer Processes of Organic Chemicals Between Atmosphere and Water. Environ. Sci. Technol. 20: 810-816.

Mackay, D. 2001. "Multimedia Environmental Models: The Fugacity Approach - Second Edition", Lewis Publishers, Boca Raton, pp. 191-194.

The required input data are:

Chemical Properties:

Environmental Properties: